A: Possibly. But check your signal metrics (RSRP, SINR) first. Slow speeds are usually a tower congestion issue, not a firmware bug.
However, finding Arcadyan firmware is notoriously difficult. Unlike ASUS or Netgear, Arcadyan primarily sells to , not directly to consumers. This changes how you download the software. arcadyan firmware download
Here is everything you need to know about finding, downloading, and safely installing Arcadyan firmware. Before you search for a .bin file, understand this: Arcadyan rarely hosts public firmware. A: Possibly